The photo is live.

The German web site translated
here.

With parking brake and VG cable feed through. The hub is provided
with a rubber insert that adapts to the shape of the speedbar and also absorbs
any shocks.

Facebook discussion
here.

I use polyurethane glue to adapt them to the WW profile. They sell
the wheels with foam to adapt but the foam is too soft. I do not use the
polyurethane glue directly on the carbon bar. First. I put a tape on the bar. I
have drilled some holes in the wheels to reduce their weight by10 grams.